/*
 * Copyright (c) 2007 Team and Concepts Limited.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Team and Concepts Limited nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY TEAM AND CONCEPTS LIMITED ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL TEAM AND CONCEPTS LIMITED BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace EditGrid.API.Client
{
    internal class CSVUtil
    {
        public static string AsCSV(string[][] ss)
        {
            StringBuilder sb = new StringBuilder();
            char[] specialChars = { ' ', ',', '"'};
            for (int i = 0; i < ss.Length; i++)
            {
                for (int j = 0; j < ss[i].Length; j++)
                {
                    string s = ss[i][j].Replace("\n", "").Replace("\r", "");
                    if (s.IndexOfAny(specialChars) >= 0 || ss[i].Length == 1 && s == "")
                    {
                        sb.Append('"');
                        sb.Append(s.Replace("\"", "\"\""));
                        sb.Append('"');
                    }
                    else
                    {
                        sb.Append(s);
                    }
                    sb.Append(',');
                }
                if (sb.Length > 0)
                {
                    sb.Remove(sb.Length - 1, 1);
                }
                sb.Append('\n');
            }
            return sb.ToString();
        }
    }
}
